Hart, H. L. A.  1907- <br/><br/>
The concept of law / 
H. L. A. Hart 
 - Oxford :  Oxford University Press,  1961 
 - 262 p. ;  22 cm. 
 - Clarendon law series .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Jurisprudence